Space

According to NASA,this Urine Processor Assembly managed to get through three rigorous testing sessions, and apparently was good enough for officials to leave it in orbit; but no one takes the first sip - $154 million water recycling system which is designed to convert sweat, moisture and urine into digestible fluid .

Space Debris U.S. scientists are looking for a way to clear the clutter in space, which some say is becoming troublesome on the heavenly highways. So far, ideas have fallen into two buckets -- limiting new debris and eliminating existing debris. The space junk problem is increasing, in part because of collisions between materials in space, rocket stage failures and activities such as anti-satellite testing. "Even though recent efforts have been successful in minimizing the amount of new debris, the number of debris pieces continues to increase, if space-faring nations continue to ignore this growing space access challenge, we will reach a gridlock situation in which launching satellites is too risky.” According to space.com .